(Borax is the decahydrate form, not the pentahydrate form. Tetraborate pentahydrate is the chemical most commonly used in borate products sold in pool stores.)
(Borax is the decahydrate form, not the pentahydrate form. Tetraborate pentahydrate is the chemical most commonly used in borate products sold in pool stores.)
The pool math calculator shows 495 ox of borax for 30 ppm in a 14,100 gal pool.
This calculates out to 250 ppm or about 120 ppm sodium borate, accounting for the decahydrate.
Can someone explain this apparent discrepancy?
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